Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Jan. 02, 2016
Jan. 03, 2015
Statement of Comprehensive Income [Abstract]      
Net income $ 23,747 $ 23,552 $ 16,405
Other comprehensive income before tax      
Change in fair value of derivatives     (212)
Reclassification to earnings   126 1,195
Other comprehensive income before tax   126 983
Income tax expense related to components of other comprehensive income   50 431
Reversal of income tax allocation   (1,595)  
Net current-period other comprehensive income   1,671 552
Comprehensive income $ 23,747 $ 25,223 $ 16,957